45665499456655 has 16 divisors (see below), whose sum is σ = 59014017818784. Its totient is φ = 33722134070400.

The previous prime is 45665499456581. The next prime is 45665499456659. The reversal of 45665499456655 is 55665499456654.

It is not a de Polignac number, because 45665499456655 - 2¹⁷ = 45665499325583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45665499456659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48563872 + ... + 49495258.

It is an arithmetic number, because the mean of its divisors is an integer number (3688376113674).

Almost surely, 2^{45665499456655} is an apocalyptic number.

45665499456655 is a deficient number, since it is larger than the sum of its proper divisors (13348518362129).

45665499456655 is a wasteful number, since it uses less digits than its factorization.

45665499456655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685706.

The product of its digits is 20995200000, while the sum is 79.

Subtracting 45665499456655 from its reverse (55665499456654), we obtain a palindrome (9999999999999).

The spelling of 45665499456655 in words is "forty-five trillion, six hundred sixty-five billion, four hundred ninety-nine million, four hundred fifty-six thousand, six hundred fifty-five".